57Fe Mössbauer spectroscopy on the cyclic spin-cluster Fe6(tea)6(CH3OH)6 |
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| Authors: | J Kreitlow J Litterst S Süllow B Pilawa |
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| Institution: | 1. Institut für Physik der Kondensierten Materie, TU Braunschweig, 38106, Braunschweig, Germany
2. Physikalisches Institut, Universit?t Karlsruhe (TH), 76128, Karlsruhe, Germany
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| Abstract: | We present 57Fe Mössbauer spectroscopy experiments on the cyclic spin-cluster Fe6(tea)6(CH3OH)6 (tea = triethanolaminato(-3)). In former studies, the spin cluster has been treated as a homogenous, quasi-one-dimensional spin S=5/2 Heisenberg antiferromagnet. Our experiments reveal spectra, which consists of two different quadrupolar doublets. In consequence, there are two different Fe sites among the hexanuclear iron spin-cluster. |
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| Keywords: | 57Fe M?ssbauer spectroscopy cyclic spin-cluster quadrupolar doublets |
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